Theorem scafvalg 14455

Description: The scalar multiplication operation as a function. (Contributed by Mario Carneiro, 5-Oct-2015.)

Hypotheses

Ref	Expression
scaffval.b	|- B = ( Base ` W )
scaffval.f	|- F = (Scalar ` W )
scaffval.k	|- K = ( Base ` F )
scaffval.a	|- .xb = ( .sf ` W )
scaffval.s	|- .x. = ( .s ` W )

Assertion

Ref	Expression
scafvalg	|- ( ( W e. V /\ X e. K /\ Y e. B ) -> ( X .xb Y ) = ( X .x. Y ) )

Proof of Theorem scafvalg

Dummy variables x y are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		scaffval.b	. . . 4 |- B = ( Base ` W )
2		scaffval.f	. . . 4 |- F = (Scalar ` W )
3		scaffval.k	. . . 4 |- K = ( Base ` F )
4		scaffval.a	. . . 4 |- .xb = ( .sf ` W )
5		scaffval.s	. . . 4 |- .x. = ( .s ` W )
6	1, 2, 3, 4, 5	scaffvalg 14454	. . 3 |- ( W e. V -> .xb = ( x e. K , y e. B |-> ( x .x. y ) ) )
7	6	3ad2ant1 1045	. 2 |- ( ( W e. V /\ X e. K /\ Y e. B ) -> .xb = ( x e. K , y e. B |-> ( x .x. y ) ) )
8		oveq12 6059	. . 3 |- ( ( x = X /\ y = Y ) -> ( x .x. y ) = ( X .x. Y ) )
9	8	adantl 277	. 2 |- ( ( ( W e. V /\ X e. K /\ Y e. B ) /\ ( x = X /\ y = Y ) ) -> ( x .x. y ) = ( X .x. Y ) )
10		simp2 1025	. 2 |- ( ( W e. V /\ X e. K /\ Y e. B ) -> X e. K )
11		simp3 1026	. 2 |- ( ( W e. V /\ X e. K /\ Y e. B ) -> Y e. B )
12		vscaslid 13376	. . . . . 6 |- ( .s = Slot ( .s ` ndx ) /\ ( .s ` ndx ) e. NN )
13	12	slotex 13239	. . . . 5 |- ( W e. V -> ( .s ` W ) e. _V )
14	5, 13	eqeltrid 2319	. . . 4 |- ( W e. V -> .x. e. _V )
15	14	3ad2ant1 1045	. . 3 |- ( ( W e. V /\ X e. K /\ Y e. B ) -> .x. e. _V )
16		ovexg 6084	. . 3 |- ( ( X e. K /\ .x. e. _V /\ Y e. B ) -> ( X .x. Y ) e. _V )
17	10, 15, 11, 16	syl3anc 1274	. 2 |- ( ( W e. V /\ X e. K /\ Y e. B ) -> ( X .x. Y ) e. _V )
18	7, 9, 10, 11, 17	ovmpod 6181	1 |- ( ( W e. V /\ X e. K /\ Y e. B ) -> ( X .xb Y ) = ( X .x. Y ) )

Syntax hints:   -> wi 4   /\ wa 104   /\ w3a 1005   = wceq 1398   e. wcel 2203   _Vcvv 2813   ` cfv 5352  (class class class)co 6050   e. cmpo 6052   Basecbs 13212  Scalarcsca 13293   .scvsca 13294   .sfcscaf 14436

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-coll 4225  ax-sep 4228  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-setind 4659  ax-cnex 8218  ax-resscn 8219  ax-1re 8221  ax-addrcl 8224

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-ral 2525  df-rex 2526  df-reu 2527  df-rab 2529  df-v 2815  df-sbc 3043  df-csb 3139  df-dif 3213  df-un 3215  df-in 3217  df-ss 3224  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-int 3950  df-iun 3993  df-br 4110  df-opab 4172  df-mpt 4173  df-id 4414  df-xp 4755  df-rel 4756  df-cnv 4757  df-co 4758  df-dm 4759  df-rn 4760  df-res 4761  df-ima 4762  df-iota 5312  df-fun 5354  df-fn 5355  df-f 5356  df-f1 5357  df-fo 5358  df-f1o 5359  df-fv 5360  df-ov 6053  df-oprab 6054  df-mpo 6055  df-1st 6334  df-2nd 6335  df-inn 9238  df-2 9296  df-3 9297  df-4 9298  df-5 9299  df-6 9300  df-ndx 13215  df-slot 13216  df-base 13218  df-sca 13306  df-vsca 13307  df-scaf 14438

This theorem is referenced by:  lmodfopne  14474